Lay-Z-Spa
Incorrect Temperature Reading
Lay-Z-Spa digital temperature display is clearly inaccurate compared to actual water temperature.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Aging or drifted temperature sensor, Sensor not fully immersed in water flow, Scale buildup around sensor, Control PCB calibration error
How to Fix / Troubleshooting
Safety first: Unplug the spa before attempting any internal inspection.
- 1. Verify with external thermometer: Measure water temperature with a reliable thermometer and compare to the display.
- 2. Descale sensor area: If accessible, remove the pump and gently descale the heater/sensor area with a mild descaler, then flush thoroughly.
- 3. Power reset: Unplug for 10–15 minutes, reconnect, and see if readings stabilize.
- If readings remain consistently off by several degrees: The temperature sensor or control PCB is likely out of calibration and may need replacement. Contact Lay‑Z‑Spa support.
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Repair Difficulty
Medium
3/5
Required Part
Water Temperature Sensor (NTC Probe)
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